Question

student belcher, cash
properties of parallelograms
solve for the unknown
variable (x).
answer: round to whatever you
see in the problem.
ok

Explanation:

Step1: Use property of parallelogram

In a parallelogram, opposite sides are equal. So \(30x=31x - 3\).

Step2: Solve the equation

Subtract \(30x\) from both sides: \(0=x - 3\).
Then add 3 to both sides: \(x = 3\).

Answer:

3